Observations have shown that local galaxies have modest star formation rates and form the bulk

Deep surveys have revealed fully-grown supermassive black holes powering active galactic nuclei at very high

High-redshift, gas-rich galaxy protoclusters represent excellent laboratories for investigating the effects of the environment on

We report the discovery of ~1,000 microlensing events within an area covering 20.68 deg^2 between

The Rosetta space mission of the European Space Agency Rosetta has observed comet 67P/Churyumov-Gerasimenko for

Classical Cepheids are the most used primary distance indicators to calibrate the cosmic distance ladder

Galaxies are distributed in a complex filamentary network of matter called the cosmic web. Several

Observational evidence suggests that quasar activity plays an important role in regulating how galaxies and